A second-lined trolley for large-section subway station tunnels

Abstract

The invention discloses a two-lined trolley for large-section subway station tunnels, which includes a side column, the outer surface of the lower end of the side column is fixedly equipped with a sliding mechanism, and the outer surface of one side of the side column is fixedly connected with a short As for the side wall formwork, an anchor rod is fixedly connected to the outer surface of one side of the short side wall formwork, a hook is arranged between the anchor rod and the low side wall formwork, and a lower side form is fixedly connected to one end of the anchor rod. The steel formwork trolley designed for corbel-shaped lining in the present invention is formed by connecting panels at both ends, with a certain angle of inclination at the joint. During on-site construction, foam is laid under the inclined section of the upper half to facilitate the removal of the formwork , installation, and effectively improve the construction quality of corbel-shaped lining corbels. After the pouring is completed, the surface is smooth and smooth, and there are no construction quality problems such as missing tamping, mucous membranes and falling blocks, which is conducive to speeding up the construction progress, saving time and cost for the project, and improving expectations. income.

Description

technical field [0001] The invention relates to the field of tunnel construction equipment, in particular to a second lining trolley used for large-section subway station tunnels. Background technique [0002] As the "face" project of the station, the appearance quality of the secondary lining is an important item in the quality evaluation of the tunnel project, and its construction quality is also related to the safety of the tunnel operation. At present, most subway stations are island structures with two or more layers underground. For the application of slabs, corbel-shaped lining is required for secondary lining, but the construction of corbel-shaped lining is much more difficult than conventional lining construction, and it is prone to leakage, mucous membrane and block loss. [0003] In the construction of subway stations, corbel-shaped secondary lining is often used, which is difficult to construct. The existing design of the secondary lining trolley cannot effective...

AI Technical Summary

Problems solved by technology

[0002] As the "face" project of the station, the appearance quality of the secondary lining is an important item in the quality evaluation of the tunnel project, and its construction quality is also related to the safety of the tunnel operation. At present, most subway stations are island structures with two or more layers underground. For the application of slabs, corbel-shaped lining is required for secondary lining, but the construction of corbel-shaped lining is much more difficult than conventional lining construction, and it is prone to leakage, mucous membrane and block loss

[0003] In the construction of subway stations, corbel-shaped secondary lining is often used, which is difficult to construct. The existing design of the secondary lining trolley cannot effectively solve the problems of easy leakage, mucous membrane and block loss at the corbel of the secondary lining, so as to improve the construction quality and ensure schedule

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